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laiz [17]
3 years ago
15

A circular mirror is surrounded by a square metal frame. The radius of the mirror is 2x. The side length of the metal frame is 1

2x. What is the area of the metal​ frame?
Mathematics
2 answers:
Delicious77 [7]3 years ago
8 0

Answer:

Step-by-step explanation:the area of the metal frame would be 12X^2 so it would be 144X

Kryger [21]3 years ago
6 0

Answer:

Step-by-step explanation:

If the side length of the metal frame is 12x, the area of the frame is

(12x)^2, or 144x^2.  The radius of the mirror is irrelevant here.

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Find the missing side length in the right triangle. ​
Setler [38]

Answer:

5.83

Step-by-step explanation:

Pythagorean Theorem a^2 + b^2 = c^2

5^{2} + 3^{2}  = 34\\\sqrt{34} = 5.83

7 0
3 years ago
Can anyone help me with this math question please I will give brainlist!!!
Alla [95]

Answer:

23)

a)0.6

b)7.6

As 1 large sq =1 therefore i rectangular line =1/10

and 1 small square=1/100

4 0
3 years ago
Pls can someone help me factorise: 4u²‐u-3
Murrr4er [49]

Answer:

(u - 1)(4u + 3)

Step-by-step explanation:

Given

4u² - u - 3

Consider the factors of the product of the coefficient of the u² term and the constant term which sum to give the coefficient of the u- term.

product = 4 × - 3 = - 12 and sum = - 1

The factors are -  4 and + 3

Use these factors to split the u- term

4u² - 4u + 3u - 3 ( factor the first/second and third/fourth terms )

= 4u(u - 1) + 3(u - 1) ← factor out (u - 1) from each term

= (u - 1)(4u + 3)

Thus

4u² - u - 3 = (u - 1)(4u + 3) ← in factored form

5 0
3 years ago
What is the mean value for -3, -1, 0, 2, 4, -4, 2, -3, 8, -2, 5, 1
gizmo_the_mogwai [7]

Answer:

0.75

Step-by-step explanation:

you add the numbers then divide them by the total number of numbers

5 0
3 years ago
Add 7.7 to 34.75 THANKS,
ddd [48]

Answer:

42.45

Step-by-step explanation:

34 . 75

+    7. 7

_________

42.45

________

3 0
3 years ago
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